Waca\Providers\CachedRDnsLookupProvider::getReverseDNS()

Complexity

Conditions	3
Paths	3

Size

Total Lines	29
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
	public function getReverseDNS($address)
	{
		$address = trim($address);

		// lets look in our cache database first.
		$rDns = RDnsCache::getByAddress($address, $this->database);

		if ($rDns instanceof RDnsCache) {
			// touch cache timer
			$rDns->save();

			return $rDns->getData();
		}

		// OK, it's not there, let's do an rDNS lookup.
		$result = @ gethostbyaddr($address);

		if ($result !== false) {
			$rDns = new RDnsCache();
			$rDns->setDatabase($this->database);
			$rDns->setAddress($address);
			$rDns->setData($result);
			$rDns->save();

			return $result;
		}

		return null;
	}
}